Feed-regulator



(Nolwoolel.)vh

2 G. B.. DAVIDSON'.

t Y FEED RI-IGULATOR.`

No. 380,095. Patented Mair-.'27, 13881.

r 7 INVENTQR=- WITNBssEs UNITED ISTATESV'QPATENT: OFFICE.

"GEORGE E.' DAVIDSON, OF BEOOKWAY, MICHIGAN.

FEsD-REeuIIATOR.

SPECIFICATION forming part of Letters Patent No.,380.095, dated March 27, 1888.

Application filed April 1a, 1887.

.To all whom 'it may concern:

Beit known that I, GEORGE R. DAVIDSON, of Brockway, in the `county of St. Clair and State of Michigan, have invented a new and Improved Automatic .Feedl RegulatorV for Roller-Mills and Purifiers, of whichthe following isa full, clear, and exact description.

The object of my invention is to provide a new and improved 'feed-regulator for rollermills and puriiiers, which regulator is simple in construction and 'very effective and automatic in operation.- -g

The invention consists in the construction and arrangement of -various parts and details and combinations of thesame, as will be fully described hereinafter, and then pointed out in the claims. I Y

Reference is'tobe had to the accompanying drawings, forming apart of this specification, in which similar letters of reference indicate corresponding parts in all thel figures.

Figure l is a transverse sectional elevation of a feed-hopper provided with my improvement. Fig. 2 is a front elevation of the same, parts being in section, on the line :vw of. Fig. l; and Fig. 3 is aside elevation of the' same.

In the feed-hopper'A, of any approved construction, revolvesl the feed-roller B, against the rim of which `is held one end of the feedgate C,v secured adjustably to the L-shaped rods D by means of screws E passing through slots D in the arms D of said L-shaped rods D. The otherarm, D2, of each rod D passes through a suitable bearing. formed on the side of the hopperA, thus making a fulcrum for the feedgate D,which can swing with its lower edge or bottom to or from the feed-roller B.

On the outer end ofthe arm D2 of one of the L-shaped rods D is secured the lever-arm F, connected at its outer end with one end of the coiled spring G, secured by one end to arod, H, heldadjustably in abracket, I, secured to the side of the hopper A. The bracket I is -provided with two apertured'flanges, I and serial No. 234,593. (No model.)

nut J. The upper part of the flange I2 isv providedpwith a boss surrounding the aperture togive an elongated bearing to the rod H.

VA collar, K, slides on the square part of the rod H, and can be secured to the same by the set-screw K', and rests with its upper end against the under side of the flange I, thus acting as ajanrnut for the winged nut J, and at v H from turning when screwing on the winged the same time holding the rod- H rmly in place E on the bracket I.

hopper A is secured one end of a canvas strip, L, extending with its free end downwardupon the feed-gate C, thus preventing the material in the hopper A from passing up to the topk edge of the feed-gate C. Atension-spring, G, and its connections, above. described, may be placed 'oneach arm D of 'eachrod D. The

on the inside of the'incnned side A2 of the Theoperation is as follows: The material to be fed is held in the hopper A, and when the feed-roller B rotates in the'direction of the ar`` row a it forces the material to the feed-gate C, which opens sulciently,according tothe tension with which it is pressed against the roller B, so as to permit part of the material topass out between the lower end of the gate C and "the feed-roller B. The pressure with which the feed-gate C is held with' its lower edge or bottom onthe feed-roller B is regulatedby adjusting the tension of the spring G .by moving the rod H up or down by screwing the Winged nut J and adjusting the collar K. The feed- The feed-gate C may alsobe set high or low in,4

relation to the vfeed-roller B on account of bel ing adjustable on the slotted arms D'ofthe L-shaped rods D,which also formthe fulcrum of the gate. Thus it will be seen that when the feed-gate C is moved inward on the slotted arms D"- then thelower edge or bottom of the IOO feed-gate C will be near to or below the horizontal plane that passes centrally through the cylinder of the roller B, and if said feed-gate is moved outward on the slotted arms it will 2. In afeed-regulator, the combination,with r 5 rest higher on the rim of the roller B. a feed-gate, of slotted arms on which said gate Having thus described my invention, what I is held adj ustably, pivot-arms extending from claim as new, and desire to secure by Letters the said slotted arms and forming the fulcrum 5 Patent, is for said feed-gate, a lever-arm secured to one 1. In a feed-regulator, the combination,with of the pivot-arms, aspring connected with said zo the feed-roller and feed-hopper, of a feed-gate lever-arms, and means, substantially as deheld in said hopper and resting with its botscribed,for adjusting the tension of said spring, tom against the said roller, slotted arms on as set forth.

[o which said feed-gate is held adjustably and` `pivoted arms extending from said slotted arms GEORGE R DAVIDSON' to form a fulcrum, the said slotted arms hav- Witnesses: ing their bearings in the sides of said hopper, WILLIAM J. MERIAM,

substantially as shown and described. WALLACE B. BALLENTINE. 

